Mikuni MKA155 Universal JetRef : MK00038A / 1009888

MIKUNI JET MKA155 (Manufacturer part number: 4/042-155) — a replacement jet designed for the maintenance and tuning of carburation on Mikuni carburetors. Ideal for riders and tuners looking to precisely calibrate the fuel supply to their engine, this jet is sized at 155 and serves as an adjustment element for the main flow.

• Brand: MIKUNI
• Category: Jet
• Designation: MKA155
• Manufacturer reference: 4/042-155

Designed for easy replacement in the carburetor bowl, this jet allows for fine-tuning of the mixture and throttle response by adjusting the fuel flow. It is suitable for routine maintenance, track tuning, or engine preparation work. Its installation requires basic tools (bowl cap wrench, screwdriver) and a check of the cleanliness of the passages to ensure stable carburation.

Before installation, verify compatibility with your carburetor model and keep the original jet for comparative testing. When used correctly, the MKA155 becomes a reliable component for restoring or refining the carburation of your machine without unproven technical promises — simply a dependable adjustment element in the rider's toolbox.